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Wolsk, Helene M., Bo L. Chawes, Augusto A. Litonjua, Bruce W. Hollis, Johannes Waage, Jakob Stokholm, Klaus Bønnelykke, Hans Bisgaard, and Scott T. Weiss. "Prenatal Vitamin D Supplementation Reduces Risk of Asthma/recurrent Wheeze in Early Childhood: A Combined Analysis of Two Randomized Controlled Trials." PLoS One 2017.

Wolsk, Helene M., et al. "Prenatal Vitamin D Supplementation Reduces Risk of Asthma/recurrent Wheeze in Early Childhood: A Combined Analysis of Two Randomized Controlled Trials." PLoS One 2017.